This cover is so stunning that I honestly teared up when I first saw it. The artist is Tim Jessell, and you can see more of his work here: http://www.timjessell.com.
I now also have a page for The Winter of the Robots, which you can find under My Books above. I will post more info to that page as it becomes available (e.g., where to buy it, what reviewers said about it, etc.)
What is this book about? It’s about kids who build robots and eat a lot of cheeseburgers. Their robots fight each other, but even though the kids are rivals they have to team up and build a big robot to fight an even bigger monster robot that lurks in an abandoned junkyard. It is set in my own neighborhood.